RealPresence Collaboration Server (RMX) 1500/1800/2000/4000 Administrator’s Guide
Polycom®, Inc. 1049
Microsoft RTV Video Protocol Support in CP
Conferences
Microsoft RTV (Real Time Video) protocol provides high quality video conferencing capability to Microsoft
OC (Office Communicator) Client endpoints at resolutions up to HD720p30. Interoperability between
Polycom HDX and OCS endpoints is improved.
Guidelines
The RTV protocol is supported:
In SIP networking environments only
In CP mode only
OCS (Wave 13) and Lync Server (Wave 14) clients are supported.
RTV is supported in Basic Cascade mode.
RTV is the default protocol for OCS endpoints and Lync Server clients connecting to a conference.
RTV participants are supported in recorded conferences.
RTV participant encryption is supported using the SRTP protocol.
Video Preview is not supported for RTV endpoints.
Custom Slides in IVR Services are not supported for RTV endpoints.
HD720p30 resolution is supported at bit rates greater than 600 kbps. The following table summarizes
the resolutions supported at the various bit rates.
RTV - Resolution by Bit Rate
* Dependant on the PC’s capability
System Resource usage is the same as for the H.264 protocol. The table below summarizes System
Resource usage for each of the supported resolutions.
RTV - Resolution by Resolution
Resolution Bitrate
QCIF Bitrate <180kbps
CIF30 180kbps < Bitrate < 250kbps
VGA (SD30) 250kbps < Bitrate < 600kbps *
HD720p30 600kbps < Bitrate *
Resolution HD Video Resources Used
QCIF / CIF30 0.333
VGA (SD30) / W4CIF 0.5
HD720p30 1